Introduction to Cosmology Ryden · Problem 6.4

Measuring Cosmological Parameters

Physics — Astrophysics · distance-modulus-redshift-relation

Problem

Verify that Equation 6.51 is correct in the limit of small zz. (You will probably want to use the relation log⁡10(1+x)≈0.4343ln⁡(1+x)≈0.4343x\log_{10}(1 + x) \approx 0.4343 \ln(1 + x) \approx 0.4343x in the limit ∣x∣≪1|x| \ll 1.)

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